The Twilight star attended the TeenNick HALO Awards in Los Angeles and picked a Camilla and Marc outfit for the event.

Her cute frock was purple in the middle, but mixed it up with a red panel up each side.

A high neck and white vest underneath meant Nikki could get away with the super short length, with the dress finishing at mid thigh.

The 25-year-old complemented her look with white Giuseppe Zanotti heels and a black Jimmy Choo clutch bag and left her hair in beachy loose waves.

She looked super glamorous at the event, but the actress has previously admitted she feels at her best when her outfit is relaxed.

“Well, clearly, I like to wear what’s comfortable,” she told Elle.

“That’s my first instinct, to always go with what’s comfortable. I’m really into Elizabeth and James. That’s what I’m wearing right now. I feel like it fits my body right or just loose enough to be right.”

Austin Mahone showed anything girls can do he can do just as well, looking stylish at the bash.

The teen singer wore a cosy patterned sweater, which he teamed with black jeans.

Getting into the festive spirit, he also donned some sparkling silver trainers.